Method and system for drilling fluid condition monitoring

Abstract

A method may include supplying water for a mud mixture to a mixing tank according to a predetermined volume. The method may further include supplying, using a rheological sensor, a viscosifier to the mud mixture in the mixing tank until the mud mixture achieves one or more predetermined rheological values. The method may further include supplying, using a density sensor, a weighting agent to the mud mixture in the mixing tank until the mud mixture achieves a predetermined specific gravity value. The method may further include supplying, using a pH sensor, a buffering agent to the mud mixture in the mixing tank until the mud mixture achieves a predetermined pH value to produce a drilling fluid.

What is claimed: 
     
         1 . A method, comprising:
 supplying water for a mud mixture to a mixing tank according to a predetermined volume;   supplying, using a rheological sensor, a viscosifier to the mud mixture in the mixing tank until the mud mixture achieves one or more predetermined rheological values;   supplying, using a density sensor, a weighting agent to the mud mixture in the mixing tank until the mud mixture achieves a predetermined specific gravity value; and   supplying, using a pH sensor, a buffering agent to the mud mixture in the mixing tank until the mud mixture achieves a predetermined pH value to produce a drilling fluid.   
     
     
         2 . The method of  claim 1 , further comprising:
 supplying the drilling fluid to a wellbore.   
     
     
         3 . The method of  claim 1 , further comprising:
 obtaining, by a user device, a selection of a plurality of drilling fluid properties,   wherein the plurality of drilling fluid properties comprise the one or more predetermined rheological values, the predetermined specific gravity value, and the predetermined pH value.   
     
     
         4 . The method of  claim 1 ,
 wherein the one or more predetermined rheological values comprises a predetermined ratio between a yield point (YP) to a plastic viscosity (PV).   
     
     
         5 . The method of  claim 1 ,
 wherein the predetermined volume is determined using a volume sensor coupled to the mixing tank, and   wherein the water, the first viscosifier, the weighting agent, and a buffering agent are supplied to the mixing tank in this order to produce a water-based mud (WBM) mixture.   
     
     
         6 . The method of  claim 1 , further comprising:
 supplying one or more final additives to the mud mixture based on a volume measurement of the mud mixture,   wherein the one or more final additives are selected from a group consisting of an oxygen scavenger, a sour gas scavenger, a lubricant, and a shale inhibiter.   
     
     
         7 . The method of  claim 1 ,
 wherein the rheological sensor, the density sensor, and the pH sensor transmit sensor data to a control system in real-time.   
     
     
         8 . The method of  claim 1 ,
 wherein the first viscosifier is part of a dry blend mixture comprising an rheology modifier, a second viscosifier, a filtrate loss control additive, and a thinner, and   wherein the dry blend mixture is mixed with the water and Barite in a predetermined ratio to produce a preliminary mud mixture for the mixing tank.   
     
     
         9 . The method of  claim 1 ,
 wherein the first viscosifier is part of a minimum additive mud (MAM) mixture, and   wherein the MAM is mixed with the water and Barite in a predetermined ratio to produce a preliminary mud mixture for the mixing tank.   
     
     
         10 . A system, comprising:
 a mixing tank;   a plurality of sensors coupled to the mixing tank, the plurality of sensors comprising a rheological sensor, a density sensor, and a pH sensor;   a first control system coupled to the mixing tank and the plurality of sensors;   a drilling system coupled to the mixing tank and a wellbore, the drilling system comprising a second control system and a drill string, and   wherein the first control system comprises functionality for:
 supplying water for a mud mixture to a mixing tank according to a predetermined volume; 
 supplying, using the rheological sensor, a viscosifier to the mud mixture in the mixing tank until the mud mixture achieves one or more predetermined rheological values; 
 supplying, using the density sensor, a weighting agent to the mud mixture in the mixing tank until the mud mixture achieves a predetermined specific gravity value; and 
 supplying, using the pH sensor, a buffering agent to the mud mixture in the mixing tank until the mud mixture achieves a predetermined pH value to produce a drilling fluid. 
   
     
     
         11 . The system of  claim 10 , further comprising:
 a user device coupled to the first control system,   wherein the first control system comprises functionality for obtaining, from the user device, a selection of a plurality of drilling fluid properties,   wherein the plurality of drilling fluid properties comprise the one or more predetermined rheological values, the predetermined specific gravity value, and the predetermined pH value.   
     
     
         12 . The system of  claim 10 , further comprising:
 a supply tank coupled to the mixing tank,   wherein the supply tank stores dry blend mixture for producing a preliminary mud mixture in the mixing tank, and   wherein the dry blend mixture comprises a rheology modifier, a second viscosifier, a filtrate loss control additive, and a thinner.   
     
     
         13 . The system of  claim 10 , further comprising:
 a user device coupled to the first control system,   wherein the first control system comprises functionality for obtaining, from the user device, a selection of a plurality of drilling fluid properties,   wherein the plurality of drilling fluid properties comprise the one or more predetermined rheological values, the predetermined specific gravity value, and the predetermined pH value.   
     
     
         14 . The system of  claim 10 ,
 wherein the rheological sensor, the density sensor, and the pH sensor transmit sensor data to the first control system in real-time.   
     
     
         15 . A method, comprising:
 supplying diesel or mineral oil to a mixing tank according to a predetermined volume to produce a mud mixture;   supplying an inorganic viscosifier, one or more emulsifiers, a wetting agent, lime, a rheology modifier, a brine, and a fluid loss control additive to the mud mixture in the mixing tank;   supplying, using a rheological sensor, a polymeric viscosifier to the mud mixture in the mixing tank until the mud mixture achieves one or more predetermined rheological values; and   supplying, using a density sensor, a weighting agent to the mud mixture in the mixing tank until the mud mixture achieves a predetermined specific gravity value to produce a drilling fluid.   
     
     
         16 . The method of  claim 15 , further comprising:
 supplying the drilling fluid to a wellbore.   
     
     
         17 . The method of  claim 15 , further comprising:
 obtaining, by a user device, a selection of a plurality of drilling fluid properties,   wherein the plurality of drilling fluid properties comprise the one or more predetermined rheological values and the predetermined specific gravity value.   
     
     
         18 . The method of  claim 15 , further comprising:
 supplying one or more final additives to the mud mixture based on a volume measurement of the mud mixture,   wherein the one or more final additives are selected from a group consisting of an oxygen scavenger, a sour gas scavenger, a lubricant, and a shale inhibiter.   
     
     
         19 . The method of  claim 15 ,
 wherein the rheological sensor, the density sensor, and the pH sensor transmit sensor data to a control system in real-time.   
     
     
         20 . The method of  claim 15 ,
 wherein the diesel or the mineral oil comprises recycled drilling fluid that is obtained from a wellbore.